Join Dr. Zeb Hogan, National Geographic Explorer and aquatic biologist, as he searches the rivers and estuaries of central Thailand to find what could be the world's largest and most deadly freshwater fishthe giant freshwater stingray. Amazingly, this stingray was only discovered by science 20 years ago. Follow Zeb as he dives with a captive stingray for the very first time and hand feeds this monster of the deep whose jaws have the power to crush bone.

For the first time ever, National Geographic presents its programming in DVD-R format. Available exclusively through this site, you can now own more of our award-winning specials and documentaries in a high-quality DVD format.

How our DVDs and DVD-Rs Differ

Customers who purchase programs in the NG DVD Exclusives Library will receive a non-interactive, play only disc. There is no chaptering information on these DVDs, but there are chapter marks approximately every five minutes, which make it easy to fast forward through a program. The DVD-R format provides the digital video and audio quality you expect from all of our DVDs.

NOTE: The NG DVD Exclusives titles are not closed-captioned. We apologize for any inconvenience this limitation may cause.

A catfish the size of a grizzly bear a thousand-pound marlin with a deadly sharp bill fanatic fishermen who use their own arms for baiteach encounter with monster fish brings us closer to understanding them. Witness the most extreme encounters and see the latest technology used by scientists that give us the next best thing to swimming alongside a whopper fish.

Fish biologist Zeb Hogan heads off on another adventure searching for the world's largest freshwater fish. Season 5 follows him as he looks for everything from mythical giant catfish to the king of the Alaskan rivers, the Chinook salmon. He'll work with researchers, fisherman, enthusiasts and eccentrics to find some of the strangest fish we've seen yet. Following legends, firsthand accounts and word of mouth, Zeb's journey won't stop until he discovers the world's true monster fish.

Deep in the heart of Africa, an elusive man-sized predator known as the tiger fish prowls the waters of one of the most powerful rivers. While locals believe this ravenous relative of the piranha is cursed, scientists believe the fearsome fish may hold the key to understanding the evolution of an extraordinary array of bizarre creatures found throughout the Congo. Journey into Africa's Congo River Basin as National Geographic embarks on a treacherous expedition to find out what powerful environmental forces created the tiger fish and to reveal the array of fantastic creatures that also inhabit this underwater Eden.

One of the most famous programs from the National Geographic Society, The Sharks takes you on a special expedition to study these fish of fearful legend and challenge the myths surrounding them. Journey below the ocean's surface in a specially-designed cage to observe sharks at close range. Witness as Ron and Valerie Taylor, underwater filmmakers, test a mesh stainless steel suit which enables her to survive a shark attack. Meet these living symbols of terror face-to-face and learn the truth about these remarkable creatures.

Every day in the United States, 12,000 Special Agents spread out from 56 field offices to investigate a myriad of cases, but few have witnessed their efforts in the field up close and personal, until now. With extraordinary access to teams of FBI agents, National Geographic cameras take you inside the perilous world of one of America's most elite law enforcement agencies, offering a rare glimpse of their investigative strategies and techniques in action.

An eruption of Santorini some 3,600 years ago was one of the largest, yet most mysterious, natural calamities in human history and may have wiped out an entire civilization. Much of the evidence of its destruction has been lost at sea until now. National Geographic Explorer-in-Residence Robert Ballard and an international team of volcanologists, armed with a state-of-the-art Remote Operated Vehicle fitted with HD cameras, dive into the belly of the Santorini's submerged caldera.

Women are being incarcerated in record numbersand the majority of women in prison are mothers. Since mothers are often the primary or sole caregivers to their children, their incarceration can destroy a family. Lisa Ling sets out to understand what life is like for the daughters of women behind bars and how new programs are attempting to help break the cycle of imprisonment from mother to daughter.

Equipped with three-inch long canines and retractable claws like switchblades, big cats are among the fiercest and most fascinating beasts on the planetcapable of taking down fleet footed antelope or two ton elephants. National Geographic crawls through African grasslands and swamps of India to track and reveal the ultimate engineering and ambush tactics of lions, tigers, and leopards.

Every element of control at Hays State Prison feeds one central purpose: to keep convicted and dangerous felons inside. But when it all fails, two inmates make their move for freedom. National Geographic follows the intense manhunt for two escaped convicts. Inmates go into lockdown, tactical squads assemble and K-9 units scour the riverside looking for clues. Meet one of the best manhunters in the state and watch the shakedown as inmates are interrogated, cells are ripped apart, and everything is searched.

National Geographic follows new inmates entering the Georgia Diagnostic and Classification Prison before they are sent to a permanent facility to serve their hard time. Follow correctional officers as they get new inmatesfrom murderers to minor offendersshaved, showered, deloused and ready to be immersed into prison life.

The Serengeti in northern Tanzania is one of the world's last great wildlife refuges, teeming with crocs, leopards, cheetahsand one of the biggest lion populations in Africa, with approximately 3,500 lions in 300 prides. But one pride looms large in the Serengeti kingdom: a single dynasty ruling the plains to which hundreds of lions trace their roots. Experience the Serengeti through their eyes and discover how this great pride is exploding in size.

National Geographic separates fact from fiction to discover the real science behind climate change, the melting ice caps, and why the intensity of tropical storms has increased by 50 percent in the past 30 years.